<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>用户注册</title>
</head>
<body>
  <h1>用户注册</h1>
  <form action="/register" method="post">
    <input type="text" name="username" placeholder="请输入用户名"><br><br>
    <input type="password" name="password" placeholder="请输入密码"><br><br>
    <input type="text" name="nickname" placeholder="请输入昵称"><br><br>
    <input type="submit" value="注册">
  </form>
</body>
</html>